Hi there, RoziPozi.
Thank you for getting back to us here in the Community. The reason you encouter this error it because there is duplicate transaction on it.. Let's go ahead and locate the duplicate transactions.
- Click Transactions.
- Press the Banking tab, and click the account where the entries are uploaded.
- Go to the For Review column.
- Locate the transactions you want to delete.
- Select Exclude.
That way, you'll be able to unmatch the transaction. You can read through this article about the unmatching downloaded transaction in QuickBooks Online: Unmatch downloaded bank transactions or move them to another account.
However, if you getting the same error, I suggest reaching out to our customer support team. This way, one of our agents can pull up your account and help you assess the error you've encountered. You can refer to this article on how to contact our support team: Contact support.
Please don't hesitate to reach back to me if there's anything else you need. I'm just a post away. Stay safe!
